Syntax

Remarks

Implement the IRegisterMetadata interface to provide custom attributes for defining the design-time behavior and appearance of Windows Presentation Foundation (WPF) controls. Each design-time metadata assembly must include a type that implements IRegisterMetadata.

Examples

The following code example shows how to implement the IRegisterMetadata interface. The Metadata class attaches an adorner provider to a control. For more information, see Walkthrough: Creating a Design-time Adorner.

' Container for any general design-time metadata to initialize.
' Designers look for a type in the design-time assembly that
' implements IRegisterMetadata. If found, designers instantiate
' this class and call its Register() method automatically.
Friend Class Metadata
Implements IRegisterMetadata
' Called by the designer to register any design-time metadata.
Public Sub Register() Implements IRegisterMetadata.Register
Dim builder As New AttributeTableBuilder()
' Add the adorner provider to the design-time metadata.
builder.AddCustomAttributes(GetType(ButtonWithDesignTime), _
New FeatureAttribute(GetType(OpacitySliderAdornerProvider)))
MetadataStore.AddAttributeTable(builder.CreateTable())
End Sub
End Class

// Container for any general design-time metadata to initialize.
// Designers look for a type in the design-time assembly that
// implements IRegisterMetadata. If found, designers instantiate
// this class and call its Register() method automatically.
internal class Metadata : IRegisterMetadata
{
// Called by the designer to register any design-time metadata.
public void Register()
{
AttributeTableBuilder builder = new AttributeTableBuilder();
// Add the adorner provider to the design-time metadata.
builder.AddCustomAttributes(
typeof(ButtonWithDesignTime),
new FeatureAttribute(typeof(OpacitySliderAdornerProvider)));
MetadataStore.AddAttributeTable(builder.CreateTable());
}
}